The Hi-Link HLK-LD2410B+BLE 24GHz Human Presence Radar Sensor is an advanced mmWave radar-based sensing module designed for accurate human presence detection. Unlike traditional PIR sensors, it uses FMCW (Frequency Modulated Continuous Wave) technology to detect both moving and stationary (micro-motion) human presence, making it highly reliable for modern smart applications.
With a detection range of up to 5 meters and a wide coverage angle of ±60°, this sensor provides real-time presence detection along with distance measurement. It supports Bluetooth (BLE), UART, and GPIO outputs, allowing seamless integration with Arduino, ESP32, Raspberry Pi, and other IoT platforms.
The module comes with a visual configuration tool, enabling users to fine-tune detection range, sensitivity levels, and delay timings for different scenarios. Its compact size and flexible mounting options (ceiling or wall) make it suitable for various indoor installations.
Hi-Link HLK-LD2410B+BLE 24GHz Human Presence Radar Sensor is a high-sensitivity 24GHz human presence status sensing moduledeveloped by Hi-link. Its working principle is to use FMCW frequency-modulated continuous waves to detect human targets in the set space. Combined with radar signal processing and precise human body sensing algorithms, it realizes high-sensitivity human presence status sensing, and can identify human bodies in motion and stationary states. And auxiliary information such as the distance of the target can be calculated.
This product is mainly used in indoor scenes to sense whether there is a moving or micro-moving human body in the area, and output the detection results in real time. The farthest sensing distance can reach 5 meters, and the distance resolution is 0.75m. Provides a visual configuration tool, which can easily configure the sensing distance range, sensing sensitivity in different intervals and unmanned delay time, etc., to adapt to different specific application needs.Support GPIO and UART output, plug and play, and can be flexibly applied to different smart scenarios and terminal products.
Key Features - Hi-Link HLK-LD2410B+BLE 24GHz Human Presence Radar Sensor
- 24GHz mmWave radar technology for precise human detection
- Detects both moving and stationary human presence
- Maximum sensing range up to 5 meters
- Wide detection angle: ±60° coverage
- BLE + UART + GPIO output for flexible connectivity
- Distance resolution: 0.75m
- Adjustable detection zones and sensitivity levels
- Visual configuration tool for easy setup
- Strong environmental adaptability (not affected by light, temperature, or humidity)
- Can work behind plastic or enclosures (no visible sensor needed)
- Compact size: ~7mm × 35mm
- Wide input voltage: 5V–12V
- FCC & CE compliant
Advantages over Traditional Sensors
- Detects static humans (breathing/micro-motion) unlike PIR
- Works reliably in dark, bright, or fluctuating environments
- Better accuracy with low false triggers
- Can be hidden inside devices for clean product design
Applications - Hi-Link HLK-LD2410B+BLE 24GHz Human Presence Radar Sensor
- Smart Lighting Systems – Automatic ON/OFF based on presence
- Smart Home Automation – Control AC, TV, and appliances
- Security Systems – Intrusion detection and monitoring
- Advertising Displays – Wake-up screens when someone approaches
- Energy Saving Systems – Turn off devices when no one is present
- Industrial Safety – Detect human presence in hazardous areas
- Healthcare & Monitoring – Detect presence without contact
Product parameters
- Plug and play, easy assembly
- The longest sensing distance is up to 5 meters
- Large detection angle, coverage up to ±60 degrees
- Accurate identification within the interval, support the division of the sensing range, and shield the interference outside the interval Multi-level intelligent parameter adjustment to meet the needs of scene changes
- Visual debugging and configuration tools
- Small and simplified, the minimum size is only 7mmx35mm
- Supports various installation methods such as ceiling hanging and wall hanging
- 24GHz ISM band, compliant with FCC and CE spectrum regulations
- 5～12V wide voltage power supply
- The ultimate cost-effective choice
Solution Advantage:
LD2410 human body sensing module adopts 24GHz millimeter wave radar sensor technology. Compared with other solutions, it has obvious advantages in human body sensing applications:
- In addition to being sensitive to the moving human body, it can also sensitively sense the static, fretting, and sitting and lying movements of the human body that cannot be recognized by traditional solutions.
- It has good environmental adaptability, and the sensing effect is not affected by the surrounding environment such as temperature, brightness, humidity and light fluctuations.
- With good shell penetration and can be hidden in the shell to work without opening holes on the surface of the product, which improves the aesthetics of the product.
- Flexible configuration of the farthest sensing distance and the sensitivity on each distance door for flexible and fine-tuned personalization.
Application:
* Human body sensor light control
It senses whether there is someone in the space, and automatically controls lights, such as lighting equipment in public places, various sensor lights, bulb lights, etc.
* Human body induction wake-up of advertising screen and other equipment
Automatically turn on when people come, and automatically sleep when no one comes to save power, information delivery is more accurate and efficient
* Life safety protection
UV lamp work protection, to prevent the UV lamp from being turned on when there are people around and causing personal injury
Automatic detection and alarm of dangerous places to prevent people from entering specific high-risk spaces, such as high-risk places entered by personnel from coal mine blasting
* Smart home appliances
When there is no one in the room for a long time, the TV, air conditioner and other electrical appliances are automatically turned off, saving energy and safety
* Intelligent security
Detection and identification of people intruding, staying, etc. within the specified range
Package Includes - Hi-Link HLK-LD2410B+BLE 24GHz Human Presence Radar Sensor
- 1 × HLK-LD2410B+BLE 24GHz Human Presence Radar Sensor
